Não informado. (2001). Studies from the Division of Laboratories and Research. New York State Department of Health.
Chicago-referens (17:e uppl.)Não informado. Studies from the Division of Laboratories and Research. Albany, NY: New York State Department of Health, 2001.
MLA-referens (8:e uppl.)Não informado. Studies from the Division of Laboratories and Research. New York State Department of Health, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.